Detachable sweat bar for rimless spectacle mountings



July 25, 1950 HURsT 2,516,701

DETACHABLE SWEAT BAR FOR RIMLESS SPECTACLE MOUNTINGS Filed Dec. 10, 1947 IN V EN TOR.

A *r T ORNEYS.

Patented July 25, 1950 DETACHABLE- SWEAT BAR EonmMLEss- SEECTAGLE MOUNTINGS' iii-ionzo=liiiirst, Providence, R. I., assignor to Atlanticx Optihali ifioducts;'Incg a:.-. corporation.

Rhodeglslamd Application December 10, 1947; SeriaINo. 7905767 This invention relates to improvements in an ophthalmic mounting, particularly for rimless spectacles, goggles. or sun glasses,- and consists in'an improved means for attaching a bar to the lens connecting straps forsupporting a cushion or for connecting the lens straps to each other. -=A iusu'al wire support for supporting a cushion and forming a so-called sweatbarfor a goggle or sun glass consists of a wirebentinto a shape to conform to the upper edgesof the lens. This bar supportsa flattened tubular member :usually made-of a. non-metallic material providing: a cushion which engages the forehead of thewearer. The? end of? the wire is solderedqto. the ,endistrap members-which connect the temples toth'e. lens.

In certain rimless spectacles a vsupport'bar is providedifor connecting the lens strapmiembers to each other. This supporting bar has. theends thereof also soldered't'o the lens straps: The use of solder is objectionable in either construction for various reasons of manufacture.

An object of the invention is the provision of a construction whereby a supporting bar may be easily attached to the lens straps without the use of solder, or the employment of relatively skilled labor.

A more specific object of the invention is the provision of a sweat bar construction for goggles or sun glasses which may be detachably secured to the lens straps by mean of a threaded memher.

With these and other objects in view, the invention consists of certain novel features of construction as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a front view of a sun g ass embodying my invention;

Figure 2 is a top edge view of the sun glasses shown in Figure 1;

Figure 3 is a front view of the sweat bar;

Figure 4 is a sectional view of the lens connecting strap and sweat bar attached thereto, taken substantially along line 44 of Figure 1;

Figure 5 is a view of a fragmental portion of a rimless spectacle showing a bar attached to the lens strap by means of a construction embodying the invention; and

Figure 6 is a front view of the supporting bar shown in Figure 5.

In carrying out my invention as applied to sun glasses, I provide a wire of a length to extend between the temple connecting straps. This wire is bent to a shape to conform to the upper edge portion of the lens. The end extremities of the 31'Claims. (01; 88-41):

wire are enlarged-with the enlarged portion-post.-

tioned in abutting relation with the temple attachingstrapmember 01: the lens. Each-en." largement is provided-with a threaded opening which willalign with= the openings in-the ad jacent lens strap and threadedly. receive the usual screws connecting the-straps vto the lens. Ehis wire supports a flattened tubular memben forming the cushion portion of a so-called sweat bar. Thus, I provide a means for attaching-the sweat bar to the sun glassl-without the use oi solderl Rief'erring to the'drawingsfor a more'detailed description of theinvention, l I! designates-gem erally: a rimless suna glasswhich comprises the usual 'lens- I I connected lay-abridge member l2; the ternples 13 :for supporting the mounting: on the'face of the wearer, and a sweat bar or cushion i l having acentral enlargement i=5 for engaging theforehead. of the wearer. The bridgemember i3 is attached to the lens by means of lens strap members I 6, and the temples l3 by means of lens strap members I1. These two strap members l6 and I 'l are of a usual construction having aligned openings I8 extending therethrough for receiving a screw l9.

The sweat bar l4 comprises a length of wire 22 (see Figure 3) which is bent to a shape to conform to the upper edges of the lens II and supports centrally thereof the enlargement l5 which is of a non-metallic material forming a cushion for engaging the forehead of the wearer. This cushion is of a flattened tubular formation with the wire 22 extending therethrough, and is secured to the wire in any approved manner. The end extremities 23 of the wire 22 are enlarged as at 23, and each enlargement 23' is provided with a threaded opening 24. The wire 22 is positioned in close adjacency to the upper edge of the lens with the enlargement 23' in abutting relation with the lens strap ll, and the openings 24 align with the openings I8 in the lens straps. A screw [9 extends through each of the openings l3 and threadedly engages the opening 24 and secures the wires 22 in position.

In Figure 5 I have shown a similar means for attaching a lens strap support bar 25 to the strap members 26 and 21. This re-enforcing bar 25 is bent to a shape to conform to the upper edges of the lens 28. Each end extremity of the bar is also enlarged as at 29 and 30. Each enlargement is provided with threaded openings 32. The straps 26 and 21 are of a usual construction having aligned opening 33 extending through the arms thereof. Th bar 25 is positioned to place the enlargements 29 and 30 in abutting relation with the strap members 26 and 21 with the openings 32 aligned with the openings in the straps 26 and 21. A screw 34 extends through the aligned openings of each strap member and threadedly engages with the openings 32 and 33 to secure the wire 25 in place.

It may now be apparent that I have in a very simple manner provided a means for attaching a supporting bar to the lens strap of rimless spectacles without the use of solder and in which the usual screw employed for securing the strap members to the lens are also utilized for attaching the support bar in place.

I claim:

1. In rimless sun glasses and the like, having strap members for attaching the temples to the lens, each of said strap members and said lens having aligned openings extending therethrough, a sweat bar for said sun glasses comprising a single length of wire extending between said strap members with a cushion thereon and with the end portions thereof abutting said strap members, each of said end portions having a threaded opening therein aligned with the openings in an adjacent strap member and lens, and a screw extending through the openings in the strap member and lens, and engaging said threaded opening for detachably securing said sweat bar to said strap members.

2. In rimless sun glasses and the like, having strap members for attaching the temples to the lens, each of said strap members and said lens having aligned openings extending therethrough, a sweat bar for said sun glasses comprising a single length of wire extending between said strap members and with the end portions thereof abutting said strap member, said wire having a non-metallic cushion member secured thereto centrally thereof, each of said end portions having a threaded opening therein aligned with the openings in an adjacent strap member and lens, and a screw extending through the openings in the strap member and the lens, and engaging said threaded opening for detachably securing said bar to said strap members.

3. In rimless sun glasses and the like, having strap members for attaching the temples to the lens, each of said strap members and said lens having aligned openings extending therethrough, a sweat bar for said sun glasses comprising a single length of wire extending between said strap members and having an enlargement at each end portion thereof abutting said strap members, said wire having a non-metallic cushion member secured thereto centrally thereof, each of said enlarged portions having a threaded opening therein aligned with the openings in an adjacent strap member and lens, and a screw extending through the openings in the strap member and the lens, and engaging said threaded opening for detachably securing said bar to said strap members.

ALONZO HURST.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

